8
DEMO MANUAL DC290
NO-DESIGN SWITCHER
dc290 LT/TP 0500 500 • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2000
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
PC FAB DRAWI G
U
Paste Mask Top
Solder Side
Solder Mask Bottom
Silkscreen Top
Component Side
Solder Mask Top
PCB LAYOUT A D FIL
U
W
NOTES: UNLESS OTHERWISE SPECIFIED
1.
MATERIAL; FR4 OR EQUIVALENT EPOXY, 2 OZ COPPER CLAD
THICKNESS 0.031
±
0.006 TOTAL OF 2 LAYERS
2.
FINISH: ALL PLATED HOLES 0.001 MIN/0.0015 MAX COPPER PLATE
ELECTRODEPOSITED TIN-LEAD COMPOSITION
BEFORE REFLOW, SOLDER MASK OVER BARE COPPER (SMOBC)
3.
SOLDER MASK; BOTH SIDES USING GREEN PC-401 OR EQUIVALENT
4.
SILKSCREEN; USING WHITE NONCONDUCTIVE EPOXY INK
5.
ALL DIMENSIONS ARE IN INCHES
6.
SCORING:
0.017
2.000
2.000
SYMBOL
A
B
C
D
DIAMETER
0.020
0.040
0.072
0.095
NUMBER
OF HOLES
10
14
2
7
PLATED
YES
YES
NO
YES
A
B
B
C
C
D
D
